optimization for buffer write easy cases

#170 no bug never existed

#170 complete write tests for status quo

fix regression: nitems adjusted at the wrong location

#184 start implementation of the flush feature

#170 first basic write tests

fix doc error for cxBufferWrite

#170 add cxBufferClear test

#170 add several more buffer tests

fix cxBufferMinimumCapacity not using the allocator

(0) -300 -100 -10 +10 +100 +300 tip

mercurial